Genetic genealogy provides a means to validate or supplement historical records with genetic data. There are many benefits, including the ability to confirm or refute existing or suspected family connections. It also may help to determine the ancestral continent of origin or homeland and find living relatives.
DNA testing is used to determine the genetic relationship between people by using genetic genealogy tests: Y chromosome DNA (paternal line) and mitochondrial DNA (maternal line). Ancestry.com, the world’s largest online resource for family history, has reduced the prices of its genetic genealogy DNA tests, allowing consumers more affordable access to the family history information provided by these tests. The 33-marker paternal lineage test is $79 (from $149). The paternal lineage test analyzes DNA in the Y chromosome, which is passed virtually unchanged from father to son. Advanced paternal lineage tests, maternal lineage tests (which look at mitochondrial DNA passed from a mother to her children), and combination paternal and maternal lineage testing options are part of the product suite. Tim Sullivan, The Generations Network, Inc., parent company of Ancestry.